Road hazard marker



FIG. 1 is a perspective view of a first embodiment of a road hazard marker showing my design, taken from above and to one side;

FIG. 2 is another perspective view thereof, taken from below and to the other side;

FIG. 3 is a perspective view of a second embodiment thereof, taken from above and to one side; and

FIG. 4 is another perspective view thereof, taken from below and to the other side. 

The ornamental design for a road hazard marker, as shown and described. 